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Used Machine Warranty



When the unrepaired machine is ordered, there is no return and refund available to be included in after-sale service generally. The replacement of integrated/whole/complete machine is not allowed. Comgrow only offers Tech Support during the period of Used Machine Warranty.

How to obtain the Tech Support? 

  1. Review the guarantee: Make sure you understand the terms and conditions of the contract, including what is covered and any time limits.
  2. Gather evidence: Depending on the product and the issue, you may need to provide proof of purchase, serial number, or photos of the problem.
  3. Contact the manufacturer: Reach out to Comgrow by email, Messenger or through the website to start the warranty claim process. You may be asked to provide information about the product and the issue you are experiencing.
  4. Provide documentation: You may be asked to provide documentation or photos to support your claim. Follow the Comgrow's instructions for submitting this information.
  5. Wait for a response: Comgrow will review your claim and provide a response, which can take several days or longer, depending on the issue's complexity.
  6. Complete repairs or receive a replacement: If your warranty claim is approved, Comgrow will provide instructions for repairing the product.

What will Comgrow do during Tech Support?

Comgrow will attempt to diagnose and resolve your problem by email or Messenger on working days. Comgrow will scan your machine manufacturer code after you send out the screenshot, and then submit the case to official tech support team. Comgrow may direct you to download and install particular software updates. Comgrow may send troubleshooting steps and ask some questions for better solving. Comgrow may guide you which parts you should buy and how to set up.

The use of personal contact information

By obtaining after-sales service under this policy, you authorize Comgrow to store your contact information, including name, phone number, shipping address, and email address. We will protect the security of your information.

What to Do Before Obtaining After-Sales Service

Buyer must provide sufficient proof of purchase.
Comgrow must document what happens when buyers troubleshoot the product.
The defective item’s serial number and/or visible proof depicting the defect are required.

Valid proof of purchase:

Order number from online purchases made through Comgrow Official. If you have any question, please contact us at